In which of the following reactions,$H_2$ is liberated?
$i$. $Al_{(s)} + HCl_{(aq)} \rightarrow$
$ii$. $Al_{(s)} + NaOH_{(aq)} \rightarrow$
$iii$. $B_2H_{6(g)} + H_2O_{(l)} \rightarrow$
$iv$. $F_{2(g)} + H_2O_{(l)} \rightarrow$

Consider the following statements:
$I$. Atomic hydrogen is obtained by passing an electric arc through hydrogen gas.
$II$. Hydrogen gas does not reduce heated aluminum oxide.
$III$. Finely divided palladium absorbs a large volume of hydrogen gas.
$IV$. Pure nascent hydrogen is obtained by the reaction of $Na$ with $C_2H_5OH$.
Which of the above statements are correct?

Correct order of boiling point $(BP)$ is:

Match the terms in Column $-I$ with the relevant item in Column $-II$.

Column $-I$	Column $-II$
$A$. Electrolysis of water produces	$1$. atomic reactor
$B$. Lithium aluminium hydride is used as	$2$. polar molecule
$C$. Hydrogen chloride is a	$3$. recombines on metal surface to generate high temperature
$D$. Heavy water is used in	$4$. reducing agent
$E$. Atomic hydrogen	$5$. hydrogen and oxygen

In which of the following reactions,hydrogen is liberated?
$(i)$ $Al_{(s)} + HCl_{(aq)} \rightarrow$
$(ii)$ $Al_{(s)} + NaOH_{(aq)} \rightarrow$
$(iii)$ $NaBH_4 + I_2 \rightarrow$

Match the correct option from Column $-A$ and Column $-B$.

Column $-A$	Column $-B$
$(1).$ Calgon	$(a).$ $D_2O$
$(2).$ Perhydrol	$(b).$ Zeolite
$(3).$ Heavy water	$(c).$ Sodium hexametaphosphate
$(4).$ Aluminosilicate	$(d).$ Commercial name of Hydrogen peroxide